TPT January 2014

Cutting

Multi-functional tooling system GUEHRING offers over-turning, internal and external chamfering of tubes and bars in a single operation.

for centre drills, step drills, form drills or boring bars. The adjustment of the radially and axially moveable holders is simply carried out via a threaded pin. The standard DIN/ISO insert programme for the holders is specifically adapted to the GE 100 user requirements. The indexable inserts are high-precision ground, enabling optimal component accuracy, repeat accuracy, low cutting forces and therefore high process reliability. Ground chip breaking grooves produce short chips that are absolutely essential for accurate machining with multiple inserts. The insert programme includes various carbide qualities as well as diverse coatings enabling optimal tool life, cutting rates and low unit costs. Various machining tasks such as facing, external and internal chamfering, spot facing and centring or over-

The flexibility of its modular tooling solution maintains the transformation of the standard tool GE 100 into a “special tool” for the most varying of machining tasks and this ex-stock. The standardised modular system succeeds through its adaptability to different diameters, materials and demands on precision. Thanks to its flexibility, machining diameters from 5 to 240mm are possible with GE 100. The tool head can be universally applied: it allows adaption to all known machine holders, including all quick-change systems. By exchanging the holder or clamping sleeve it is possible to machine different workpieces with one basic holder, ie tool head. The bore in the tool head serves as clamping sleeve holder

Guehring tube chamfering technology

turning can be combined. Alongside the application on end machining systems GE 100 also achieves efficient machining strategies on machining centres or rotary indexing machines.

Guehring – Germany Website: www.guehring.de

Vertical bandsaw for valve manufacturer

is of the utmost importance. When BEL Valves needed to upgrade the cutting operation during the production of 24" diameter split gate 4A topside through-conduit valves, it turned to Prosaw to provide the solution. Although the existing process utilised a vertical bandsaw, it was very wasteful of material, typically deviating from its true path by up to ½" on either side of the blade, requiring a considerable amount of post-cutting additional machining in order to form a true surface. Prosaw specified a Danobat VL vertical bandsaw, which has

BEL Valves, based in Newcastle, UK, is a designer and manufacturer of critical oil and gas valves for both surface and subsea applications, serving evolving markets that demand the highest quality and reliability. The company has around 50,000 valves installed worldwide, some of which operate in the most inhospitable environments on the planet, often in ultra-deep waters of up to 10,000ft, under high pressures and extremes of temperature. With valve sizes ranging up to 48" in diameter and tolerances typically less than one micron, precision machining A Danobat bandsaw with the workpiece in place

The cutting edge

use of a new type of carbide saw blade that has a life of more than 50 times that of the previous machine.

Danobat – Spain Website: www.danobatgroup.com

reduced the cutting time for the product from 18 hours to just six hours. The more accurate cutting path has reduced waste material, and the company reports that this amounts to cost savings in the region of £1,500 for each valve. Further cost savings have been achieved by the

Prosaw – UK Fax: +44 1536 410080 Email: sales@prosaw.co.uk Website: www.prosaw.co.uk

BEL Valves – UK Fax: +44 191 276 3244

Email: enquiry@belvalves.com Website: www.belvalves.co.uk

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J anuary 2014